/* roulang page: index */
:root {
      --lemon-green: #C8E600;
      --deep-blue: #0A1628;
      --electric-cyan: #00E5FF;
      --bg-dark: #060E18;
      --card-glass: rgba(10, 22, 40, 0.65);
      --border-glow: rgba(200, 230, 0, 0.15);
      --text-body: #B0C4DE;
      --text-dark: #1A1A2E;
      --white: #FFFFFF;
      --font-sans: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
      --border-radius-card: 16px;
      --border-radius-btn: 50px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
      --shadow-glow: 0 0 20px rgba(200, 230, 0, 0.6);
      --transition-smooth: all 0.3s ease;
    }
    
    * {
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-dark);
      color: var(--text-body);
      line-height: 1.7;
      margin: 0;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    
    h1, h2, h3, h4, h5, h6 {
      font-weight: 600;
      color: var(--white);
    }
    
    a {
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    /* 自定义容器微调 */
    .container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }
    
    /* 导航双层结构 */
    .navbar-lemon {
      background: rgba(6, 14, 24, 0.8);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(200, 230, 0, 0.1);
      transition: background 0.3s ease, box-shadow 0.3s ease;
      padding: 0;
      position: fixed;
      width: 100%;
      z-index: 1030;
    }
    
    .navbar-scrolled {
      background: rgba(6, 14, 24, 0.95);
      box-shadow: 0 4px 20px rgba(0,0,0,0.4);
      border-bottom: 1px solid var(--lemon-green);
    }
    
    .nav-brand {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--lemon-green) !important;
      letter-spacing: -0.3px;
      display: flex;
      align-items: center;
    }
    
    .nav-top-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 0;
      flex-wrap: wrap;
    }
    
    .search-icon {
      color: var(--text-body);
      font-size: 1.3rem;
      cursor: pointer;
      transition: color 0.2s;
    }
    .search-icon:hover {
      color: var(--lemon-green);
    }
    
    .btn-consult {
      background: transparent;
      border: 1px solid var(--lemon-green);
      color: var(--lemon-green);
      border-radius: 30px;
      padding: 0.4rem 1.4rem;
      font-weight: 600;
      font-size: 0.9rem;
      transition: all 0.25s;
    }
    .btn-consult:hover {
      background: rgba(200,230,0,0.15);
      color: var(--white);
      border-color: var(--electric-cyan);
    }
    
    .channel-tabs {
      display: flex;
      gap: 6px;
      overflow-x: auto;
      white-space: nowrap;
      -webkit-overflow-scrolling: touch;
      padding-bottom: 8px;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .channel-tabs::-webkit-scrollbar {
      display: none;
    }
    
    .pill-link {
      background: rgba(255,255,255,0.05);
      color: var(--text-body);
      padding: 0.45rem 1.1rem;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.2s;
      border: 1px solid transparent;
    }
    .pill-link:hover, .pill-link.active {
      background: var(--lemon-green);
      color: #0A1628;
      font-weight: 600;
      border-color: var(--lemon-green);
    }
    
    /* Hero区域 */
    .hero-section {
      padding: 160px 0 100px;
      background: radial-gradient(circle at 30% 40%, rgba(0,229,255,0.08) 0%, transparent 50%);
      position: relative;
      overflow: hidden;
    }
    
    .hero-title {
      font-size: 2.8rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: white;
      line-height: 1.2;
    }
    
    .hero-sub {
      font-size: 1.15rem;
      color: var(--text-body);
      margin: 1.5rem 0 2rem;
    }
    
    .btn-primary-glow {
      background: linear-gradient(135deg, #C8E600, #00E5FF);
      border: none;
      color: #0A1628;
      font-weight: 700;
      border-radius: 50px;
      padding: 0.8rem 2.2rem;
      box-shadow: 0 0 20px rgba(200,230,0,0.55);
      transition: all 0.3s;
      font-size: 1rem;
    }
    .btn-primary-glow:hover {
      box-shadow: 0 0 30px rgba(0,229,255,0.8);
      transform: translateY(-2px);
      color: #0A1628;
    }
    
    .btn-outline-neon {
      background: transparent;
      border: 1px solid var(--electric-cyan);
      color: var(--electric-cyan);
      border-radius: 50px;
      padding: 0.7rem 2rem;
      font-weight: 600;
    }
    .btn-outline-neon:hover {
      background: rgba(0,229,255,0.1);
      color: white;
    }
    
    .data-panel-card {
      background: rgba(10,22,40,0.7);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(200,230,0,0.2);
      border-radius: 20px;
      padding: 24px;
      color: white;
    }
    
    .mini-chart-bar {
      height: 8px;
      background: #1e2a3a;
      border-radius: 4px;
      margin: 8px 0;
      width: 100%;
    }
    .mini-fill {
      width: 78%;
      height: 100%;
      background: var(--lemon-green);
      border-radius: 4px;
    }
    
    .particle {
      position: absolute;
      width: 4px;
      height: 4px;
      background: var(--electric-cyan);
      border-radius: 50%;
      opacity: 0.5;
      animation: float 8s infinite;
    }
    
    @keyframes float {
      0% { transform: translateY(0px) rotate(0deg); opacity: 0.3; }
      50% { transform: translateY(-30px) rotate(180deg); opacity: 0.8; }
      100% { transform: translateY(0px) rotate(360deg); opacity: 0.3; }
    }
    
    /* 通用区块 */
    .section-block {
      padding: 90px 0;
    }
    
    .section-title {
      font-size: 2.2rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
    }
    .section-sub {
      color: #8a9bb5;
      font-size: 1rem;
      margin-bottom: 3rem;
    }
    
    .glass-card {
      background: var(--card-glass);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-glow);
      border-radius: var(--border-radius-card);
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
      height: 100%;
    }
    .glass-card:hover {
      box-shadow: 0 12px 40px rgba(0,229,255,0.2);
      transform: translateY(-5px);
      border-color: rgba(200,230,0,0.3);
    }
    
    .stat-number {
      font-size: 2rem;
      font-weight: 700;
      color: var(--electric-cyan);
    }
    
    .service-icon {
      font-size: 2.5rem;
      color: var(--lemon-green);
      margin-bottom: 1.2rem;
    }
    
    /* 对比区 */
    .compare-light {
      background: #F0F4F8;
      color: #1A1A2E;
      border-radius: 20px;
      padding: 2rem;
    }
    .compare-dark {
      background: rgba(10,22,40,0.8);
      border: 1px solid var(--lemon-green);
      border-radius: 20px;
      padding: 2rem;
    }
    
    /* FAQ */
    .accordion-button:not(.collapsed) {
      background-color: rgba(200,230,0,0.1);
      color: white;
      box-shadow: none;
    }
    .accordion-button {
      background-color: transparent;
      color: white;
      font-weight: 600;
    }
    .accordion-item {
      background: transparent;
      border: 1px solid rgba(255,255,255,0.1);
    }
    
    /* 表单 */
    .form-control-dark {
      background: rgba(0,0,0,0.4);
      border: 1px solid rgba(255,255,255,0.15);
      color: white;
      border-radius: 10px;
      padding: 0.8rem;
    }
    .form-control-dark:focus {
      border-color: var(--lemon-green);
      box-shadow: 0 0 10px rgba(200,230,0,0.4);
      background: rgba(0,0,0,0.6);
      color: white;
    }
    
    .pulse-btn {
      animation: pulse 2s infinite;
      background: linear-gradient(135deg, #C8E600, #00E5FF);
      border: none;
      font-weight: 700;
      border-radius: 50px;
      padding: 0.9rem;
      color: #0A1628;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(0,229,255,0.7); }
      70% { box-shadow: 0 0 0 15px rgba(0,229,255,0); }
      100% { box-shadow: 0 0 0 0 rgba(0,229,255,0); }
    }
    
    .footer-brand {
      color: var(--lemon-green);
      font-weight: 700;
      font-size: 1.5rem;
    }
    
    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .hero-section {
        padding-top: 130px;
      }
    }